“We have documented evidence,” Johnson said after an event in Milwaukee. “It’s serious. It’s unacceptable. We made the same case when I was in Moscow a couple weeks ago.”

Gov. Scott Walker took a different approach when FOX6 News asked whether he agreed with President Trump, who said Monday during a joint news conference with Putin that “I don’t see any reason why” Russia would have interfered.

“I’ll leave that up to federal folks. That’s not in my jurisdiction,” Walker said after an event in Sussex. “I think the members of Congress certainly need to look into the details of that, but that’s not something I have any privvied information about.”

Meanwhile, Democratic U.S. Sen. Tammy Baldwin was critical of President Trump’s comments.